Preparation of 2-(2'-thienyl) alkylamines and derivatives thereof and synthesis of 4,5,6,7- thieno [3,2-c] pyridine derivatives therefrom
申请人:SANOFI
公开号:EP0439404A2
公开(公告)日:1991-07-31
An improved process for the synthesis of 2-(2'-thienyl)ethylamine from suitably functionalized derivatives of 2-(2'-thienyl)ethanol employing ammonia gas in the presence of a metal salt or liquid ammonia and alkyl ketone as a solvent. The 2-(2'-thienyl)ethylamine produced by this process is advantageously converted to the carbamic acid salt, which is suitably reconverted to 2-(2'-thienyl)ethylamine, a useful intermediate in the synthesis of ticlopidine.
一种由 2-(2'-噻吩基)乙醇的适当官能化衍生物合成 2-(2'-噻吩基)乙胺的改进工艺,该工艺在金属盐或液氨存在下使用氨气,并以烷基酮为溶剂。通过该工艺生产的 2-(2'-噻吩基)乙胺可转化为氨基甲酸盐,氨基甲酸盐可适当地再转化为 2-(2'-噻吩基)乙胺,这是合成替考拉定的有用中间体。